21873735

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 19403865

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 139, 195, 269, 417, 585, 695, 807, 1251, 1345, 1807, 2085, 2421, 3497, 4035, 5421, 6255, 9035, 10491, 12105, 16263, 17485, 27105, 31473, 37391, 52455, 81315, 112173, 157365, 186955, 336519, 486083, 560865, 1458249, 1682595, 2430415, 4374747, 7291245, 21873735]

約数ペア:

[(1, 21873735), (3, 7291245), (5, 4374747), (9, 2430415), (13, 1682595), (15, 1458249), (39, 560865), (45, 486083), (65, 336519), (117, 186955), (139, 157365), (195, 112173), (269, 81315), (417, 52455), (585, 37391), (695, 31473), (807, 27105), (1251, 17485), (1345, 16263), (1807, 12105), (2085, 10491), (2421, 9035), (3497, 6255), (4035, 5421)]