21748260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{431}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 63213696

約数和(自身を除く): 41465436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 431, 435, 580, 841, 862, 870, 1293, 1682, 1724, 1740, 2155, 2523, 2586, 3364, 4205, 4310, 5046, 5172, 6465, 8410, 8620, 10092, 12499, 12615, 12930, 16820, 24998, 25230, 25860, 37497, 49996, 50460, 62495, 74994, 124990, 149988, 187485, 249980, 362471, 374970, 724942, 749940, 1087413, 1449884, 1812355, 2174826, 3624710, 4349652, 5437065, 7249420, 10874130, 21748260]

約数ペア:

[(1, 21748260), (2, 10874130), (3, 7249420), (4, 5437065), (5, 4349652), (6, 3624710), (10, 2174826), (12, 1812355), (15, 1449884), (20, 1087413), (29, 749940), (30, 724942), (58, 374970), (60, 362471), (87, 249980), (116, 187485), (145, 149988), (174, 124990), (290, 74994), (348, 62495), (431, 50460), (435, 49996), (580, 37497), (841, 25860), (862, 25230), (870, 24998), (1293, 16820), (1682, 12930), (1724, 12615), (1740, 12499), (2155, 10092), (2523, 8620), (2586, 8410), (3364, 6465), (4205, 5172), (4310, 5046)]