221546988

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 635675040

約数和(自身を除く): 414128052

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 89, 108, 117, 156, 162, 178, 197, 234, 243, 267, 324, 351, 356, 394, 468, 486, 534, 591, 702, 788, 801, 972, 1053, 1068, 1157, 1182, 1404, 1602, 1773, 2106, 2314, 2364, 2403, 2561, 3159, 3204, 3471, 3546, 4212, 4628, 4806, 5122, 5319, 6318, 6942, 7092, 7209, 7683, 9612, 10244, 10413, 10638, 12636, 13884, 14418, 15366, 15957, 17533, 20826, 21276, 21627, 23049, 28836, 30732, 31239, 31914, 35066, 41652, 43254, 46098, 47871, 52599, 62478, 63828, 69147, 70132, 86508, 92196, 93717, 95742, 105198, 124956, 138294, 157797, 187434, 191484, 207441, 210396, 227929, 276588, 281151, 315594, 374868, 414882, 455858, 473391, 562302, 622323, 631188, 683787, 829764, 911716, 946782, 1124604, 1244646, 1367574, 1420173, 1893564, 2051361, 2489292, 2735148, 2840346, 4102722, 4260519, 5680692, 6154083, 8205444, 8521038, 12308166, 17042076, 18462249, 24616332, 36924498, 55386747, 73848996, 110773494, 221546988]

約数ペア:

[(1, 221546988), (2, 110773494), (3, 73848996), (4, 55386747), (6, 36924498), (9, 24616332), (12, 18462249), (13, 17042076), (18, 12308166), (26, 8521038), (27, 8205444), (36, 6154083), (39, 5680692), (52, 4260519), (54, 4102722), (78, 2840346), (81, 2735148), (89, 2489292), (108, 2051361), (117, 1893564), (156, 1420173), (162, 1367574), (178, 1244646), (197, 1124604), (234, 946782), (243, 911716), (267, 829764), (324, 683787), (351, 631188), (356, 622323), (394, 562302), (468, 473391), (486, 455858), (534, 414882), (591, 374868), (702, 315594), (788, 281151), (801, 276588), (972, 227929), (1053, 210396), (1068, 207441), (1157, 191484), (1182, 187434), (1404, 157797), (1602, 138294), (1773, 124956), (2106, 105198), (2314, 95742), (2364, 93717), (2403, 92196), (2561, 86508), (3159, 70132), (3204, 69147), (3471, 63828), (3546, 62478), (4212, 52599), (4628, 47871), (4806, 46098), (5122, 43254), (5319, 41652), (6318, 35066), (6942, 31914), (7092, 31239), (7209, 30732), (7683, 28836), (9612, 23049), (10244, 21627), (10413, 21276), (10638, 20826), (12636, 17533), (13884, 15957), (14418, 15366)]