21799710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 58470984

約数和(自身を除く): 36671274

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 131, 215, 258, 262, 387, 393, 430, 645, 655, 774, 786, 1179, 1290, 1310, 1849, 1935, 1965, 2358, 3698, 3870, 3930, 5547, 5633, 5895, 9245, 11094, 11266, 11790, 16641, 16899, 18490, 27735, 28165, 33282, 33798, 50697, 55470, 56330, 83205, 84495, 101394, 166410, 168990, 242219, 253485, 484438, 506970, 726657, 1211095, 1453314, 2179971, 2422190, 3633285, 4359942, 7266570, 10899855, 21799710]

約数ペア:

[(1, 21799710), (2, 10899855), (3, 7266570), (5, 4359942), (6, 3633285), (9, 2422190), (10, 2179971), (15, 1453314), (18, 1211095), (30, 726657), (43, 506970), (45, 484438), (86, 253485), (90, 242219), (129, 168990), (131, 166410), (215, 101394), (258, 84495), (262, 83205), (387, 56330), (393, 55470), (430, 50697), (645, 33798), (655, 33282), (774, 28165), (786, 27735), (1179, 18490), (1290, 16899), (1310, 16641), (1849, 11790), (1935, 11266), (1965, 11094), (2358, 9245), (3698, 5895), (3870, 5633), (3930, 5547)]