21573864

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 120

約数和(自身を含む): 65764710

約数和(自身を除く): 44190846

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 169, 197, 216, 234, 312, 324, 338, 351, 394, 468, 507, 591, 648, 676, 702, 788, 936, 1014, 1053, 1182, 1352, 1404, 1521, 1576, 1773, 2028, 2106, 2364, 2561, 2808, 3042, 3546, 4056, 4212, 4563, 4728, 5122, 5319, 6084, 7092, 7683, 8424, 9126, 10244, 10638, 12168, 13689, 14184, 15366, 15957, 18252, 20488, 21276, 23049, 27378, 30732, 31914, 33293, 36504, 42552, 46098, 54756, 61464, 63828, 66586, 69147, 92196, 99879, 109512, 127656, 133172, 138294, 184392, 199758, 207441, 266344, 276588, 299637, 399516, 414882, 553176, 599274, 799032, 829764, 898911, 1198548, 1659528, 1797822, 2397096, 2696733, 3595644, 5393466, 7191288, 10786932, 21573864]

約数ペア:

[(1, 21573864), (2, 10786932), (3, 7191288), (4, 5393466), (6, 3595644), (8, 2696733), (9, 2397096), (12, 1797822), (13, 1659528), (18, 1198548), (24, 898911), (26, 829764), (27, 799032), (36, 599274), (39, 553176), (52, 414882), (54, 399516), (72, 299637), (78, 276588), (81, 266344), (104, 207441), (108, 199758), (117, 184392), (156, 138294), (162, 133172), (169, 127656), (197, 109512), (216, 99879), (234, 92196), (312, 69147), (324, 66586), (338, 63828), (351, 61464), (394, 54756), (468, 46098), (507, 42552), (591, 36504), (648, 33293), (676, 31914), (702, 30732), (788, 27378), (936, 23049), (1014, 21276), (1053, 20488), (1182, 18252), (1352, 15957), (1404, 15366), (1521, 14184), (1576, 13689), (1773, 12168), (2028, 10638), (2106, 10244), (2364, 9126), (2561, 8424), (2808, 7683), (3042, 7092), (3546, 6084), (4056, 5319), (4212, 5122), (4563, 4728)]