21753060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{151}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 71526336

約数和(自身を除く): 49773276

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 151, 196, 210, 245, 294, 302, 343, 420, 453, 490, 588, 604, 686, 735, 755, 906, 980, 1029, 1057, 1372, 1470, 1510, 1715, 1812, 2058, 2114, 2265, 2401, 2940, 3020, 3171, 3430, 4116, 4228, 4530, 4802, 5145, 5285, 6342, 6860, 7203, 7399, 9060, 9604, 10290, 10570, 12005, 12684, 14406, 14798, 15855, 20580, 21140, 22197, 24010, 28812, 29596, 31710, 36015, 36995, 44394, 48020, 51793, 63420, 72030, 73990, 88788, 103586, 110985, 144060, 147980, 155379, 207172, 221970, 258965, 310758, 362551, 443940, 517930, 621516, 725102, 776895, 1035860, 1087653, 1450204, 1553790, 1812755, 2175306, 3107580, 3625510, 4350612, 5438265, 7251020, 10876530, 21753060]

約数ペア:

[(1, 21753060), (2, 10876530), (3, 7251020), (4, 5438265), (5, 4350612), (6, 3625510), (7, 3107580), (10, 2175306), (12, 1812755), (14, 1553790), (15, 1450204), (20, 1087653), (21, 1035860), (28, 776895), (30, 725102), (35, 621516), (42, 517930), (49, 443940), (60, 362551), (70, 310758), (84, 258965), (98, 221970), (105, 207172), (140, 155379), (147, 147980), (151, 144060), (196, 110985), (210, 103586), (245, 88788), (294, 73990), (302, 72030), (343, 63420), (420, 51793), (453, 48020), (490, 44394), (588, 36995), (604, 36015), (686, 31710), (735, 29596), (755, 28812), (906, 24010), (980, 22197), (1029, 21140), (1057, 20580), (1372, 15855), (1470, 14798), (1510, 14406), (1715, 12684), (1812, 12005), (2058, 10570), (2114, 10290), (2265, 9604), (2401, 9060), (2940, 7399), (3020, 7203), (3171, 6860), (3430, 6342), (4116, 5285), (4228, 5145), (4530, 4802)]