21966228

素因数分解:

$2^2\times 3^{11}\times {\mathrm{31}}^1$

素因数の和:68

約数の個数: 72

約数和(自身を含む): 59521280

約数和(自身を除く): 37555052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 93, 108, 124, 162, 186, 243, 279, 324, 372, 486, 558, 729, 837, 972, 1116, 1458, 1674, 2187, 2511, 2916, 3348, 4374, 5022, 6561, 7533, 8748, 10044, 13122, 15066, 19683, 22599, 26244, 30132, 39366, 45198, 59049, 67797, 78732, 90396, 118098, 135594, 177147, 203391, 236196, 271188, 354294, 406782, 610173, 708588, 813564, 1220346, 1830519, 2440692, 3661038, 5491557, 7322076, 10983114, 21966228]

約数ペア:

[(1, 21966228), (2, 10983114), (3, 7322076), (4, 5491557), (6, 3661038), (9, 2440692), (12, 1830519), (18, 1220346), (27, 813564), (31, 708588), (36, 610173), (54, 406782), (62, 354294), (81, 271188), (93, 236196), (108, 203391), (124, 177147), (162, 135594), (186, 118098), (243, 90396), (279, 78732), (324, 67797), (372, 59049), (486, 45198), (558, 39366), (729, 30132), (837, 26244), (972, 22599), (1116, 19683), (1458, 15066), (1674, 13122), (2187, 10044), (2511, 8748), (2916, 7533), (3348, 6561), (4374, 5022)]