21559770

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 80

約数和(自身を含む): 59415840

約数和(自身を除く): 37856070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 81, 86, 90, 129, 135, 162, 215, 258, 270, 387, 405, 430, 619, 645, 774, 810, 1161, 1238, 1290, 1857, 1935, 2322, 3095, 3483, 3714, 3870, 5571, 5805, 6190, 6966, 9285, 11142, 11610, 16713, 17415, 18570, 26617, 27855, 33426, 34830, 50139, 53234, 55710, 79851, 83565, 100278, 133085, 159702, 167130, 239553, 250695, 266170, 399255, 479106, 501390, 718659, 798510, 1197765, 1437318, 2155977, 2395530, 3593295, 4311954, 7186590, 10779885, 21559770]

約数ペア:

[(1, 21559770), (2, 10779885), (3, 7186590), (5, 4311954), (6, 3593295), (9, 2395530), (10, 2155977), (15, 1437318), (18, 1197765), (27, 798510), (30, 718659), (43, 501390), (45, 479106), (54, 399255), (81, 266170), (86, 250695), (90, 239553), (129, 167130), (135, 159702), (162, 133085), (215, 100278), (258, 83565), (270, 79851), (387, 55710), (405, 53234), (430, 50139), (619, 34830), (645, 33426), (774, 27855), (810, 26617), (1161, 18570), (1238, 17415), (1290, 16713), (1857, 11610), (1935, 11142), (2322, 9285), (3095, 6966), (3483, 6190), (3714, 5805), (3870, 5571)]