21674580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 64339968

約数和(自身を除く): 42665388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 215, 258, 271, 310, 372, 430, 465, 516, 542, 620, 645, 813, 860, 930, 1084, 1290, 1333, 1355, 1626, 1860, 2580, 2666, 2710, 3252, 3999, 4065, 5332, 5420, 6665, 7998, 8130, 8401, 11653, 13330, 15996, 16260, 16802, 19995, 23306, 25203, 26660, 33604, 34959, 39990, 42005, 46612, 50406, 58265, 69918, 79980, 84010, 100812, 116530, 126015, 139836, 168020, 174795, 233060, 252030, 349590, 361243, 504060, 699180, 722486, 1083729, 1444972, 1806215, 2167458, 3612430, 4334916, 5418645, 7224860, 10837290, 21674580]

約数ペア:

[(1, 21674580), (2, 10837290), (3, 7224860), (4, 5418645), (5, 4334916), (6, 3612430), (10, 2167458), (12, 1806215), (15, 1444972), (20, 1083729), (30, 722486), (31, 699180), (43, 504060), (60, 361243), (62, 349590), (86, 252030), (93, 233060), (124, 174795), (129, 168020), (155, 139836), (172, 126015), (186, 116530), (215, 100812), (258, 84010), (271, 79980), (310, 69918), (372, 58265), (430, 50406), (465, 46612), (516, 42005), (542, 39990), (620, 34959), (645, 33604), (813, 26660), (860, 25203), (930, 23306), (1084, 19995), (1290, 16802), (1333, 16260), (1355, 15996), (1626, 13330), (1860, 11653), (2580, 8401), (2666, 8130), (2710, 7998), (3252, 6665), (3999, 5420), (4065, 5332)]