21302580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:937

約数の個数: 96

約数和(自身を含む): 66382848

約数和(自身を除く): 45080268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 881, 930, 1209, 1612, 1762, 1860, 2015, 2418, 2643, 3524, 4030, 4405, 4836, 5286, 6045, 8060, 8810, 10572, 11453, 12090, 13215, 17620, 22906, 24180, 26430, 27311, 34359, 45812, 52860, 54622, 57265, 68718, 81933, 109244, 114530, 136555, 137436, 163866, 171795, 229060, 273110, 327732, 343590, 355043, 409665, 546220, 687180, 710086, 819330, 1065129, 1420172, 1638660, 1775215, 2130258, 3550430, 4260516, 5325645, 7100860, 10651290, 21302580]

約数ペア:

[(1, 21302580), (2, 10651290), (3, 7100860), (4, 5325645), (5, 4260516), (6, 3550430), (10, 2130258), (12, 1775215), (13, 1638660), (15, 1420172), (20, 1065129), (26, 819330), (30, 710086), (31, 687180), (39, 546220), (52, 409665), (60, 355043), (62, 343590), (65, 327732), (78, 273110), (93, 229060), (124, 171795), (130, 163866), (155, 137436), (156, 136555), (186, 114530), (195, 109244), (260, 81933), (310, 68718), (372, 57265), (390, 54622), (403, 52860), (465, 45812), (620, 34359), (780, 27311), (806, 26430), (881, 24180), (930, 22906), (1209, 17620), (1612, 13215), (1762, 12090), (1860, 11453), (2015, 10572), (2418, 8810), (2643, 8060), (3524, 6045), (4030, 5286), (4405, 4836)]