213574473

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^3\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 367785600

約数和(自身を除く): 154211127

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 139, 203, 261, 417, 609, 841, 973, 1251, 1827, 2523, 2919, 4031, 5887, 7569, 8757, 12093, 17661, 24389, 28217, 36279, 52983, 73167, 84651, 116899, 170723, 219501, 253953, 350697, 512169, 818293, 1052091, 1536507, 2454879, 3390071, 7364637, 10170213, 23730497, 30510639, 71191491, 213574473]

約数ペア:

[(1, 213574473), (3, 71191491), (7, 30510639), (9, 23730497), (21, 10170213), (29, 7364637), (63, 3390071), (87, 2454879), (139, 1536507), (203, 1052091), (261, 818293), (417, 512169), (609, 350697), (841, 253953), (973, 219501), (1251, 170723), (1827, 116899), (2523, 84651), (2919, 73167), (4031, 52983), (5887, 36279), (7569, 28217), (8757, 24389), (12093, 17661)]