21443880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2153}}^1$

素因数の和:2250

約数の個数: 64

約数和(自身を含む): 65136960

約数和(自身を除く): 43693080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2153, 2490, 3320, 4306, 4980, 6459, 8612, 9960, 10765, 12918, 17224, 21530, 25836, 32295, 43060, 51672, 64590, 86120, 129180, 178699, 258360, 357398, 536097, 714796, 893495, 1072194, 1429592, 1786990, 2144388, 2680485, 3573980, 4288776, 5360970, 7147960, 10721940, 21443880]

約数ペア:

[(1, 21443880), (2, 10721940), (3, 7147960), (4, 5360970), (5, 4288776), (6, 3573980), (8, 2680485), (10, 2144388), (12, 1786990), (15, 1429592), (20, 1072194), (24, 893495), (30, 714796), (40, 536097), (60, 357398), (83, 258360), (120, 178699), (166, 129180), (249, 86120), (332, 64590), (415, 51672), (498, 43060), (664, 32295), (830, 25836), (996, 21530), (1245, 17224), (1660, 12918), (1992, 10765), (2153, 9960), (2490, 8612), (3320, 6459), (4306, 4980)]