21341775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 44997120

約数和(自身を除く): 23655345

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 53, 59, 65, 75, 91, 105, 159, 175, 177, 195, 265, 273, 295, 325, 371, 413, 455, 525, 689, 767, 795, 885, 975, 1113, 1239, 1325, 1365, 1475, 1855, 2065, 2067, 2275, 2301, 3127, 3445, 3835, 3975, 4425, 4823, 5369, 5565, 6195, 6825, 9275, 9381, 10325, 10335, 11505, 14469, 15635, 16107, 17225, 19175, 21889, 24115, 26845, 27825, 30975, 40651, 46905, 51675, 57525, 65667, 72345, 78175, 80535, 109445, 120575, 121953, 134225, 203255, 234525, 284557, 328335, 361725, 402675, 547225, 609765, 853671, 1016275, 1422785, 1641675, 3048825, 4268355, 7113925, 21341775]

約数ペア:

[(1, 21341775), (3, 7113925), (5, 4268355), (7, 3048825), (13, 1641675), (15, 1422785), (21, 1016275), (25, 853671), (35, 609765), (39, 547225), (53, 402675), (59, 361725), (65, 328335), (75, 284557), (91, 234525), (105, 203255), (159, 134225), (175, 121953), (177, 120575), (195, 109445), (265, 80535), (273, 78175), (295, 72345), (325, 65667), (371, 57525), (413, 51675), (455, 46905), (525, 40651), (689, 30975), (767, 27825), (795, 26845), (885, 24115), (975, 21889), (1113, 19175), (1239, 17225), (1325, 16107), (1365, 15635), (1475, 14469), (1855, 11505), (2065, 10335), (2067, 10325), (2275, 9381), (2301, 9275), (3127, 6825), (3445, 6195), (3835, 5565), (3975, 5369), (4425, 4823)]