21665070

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3821}}^1$

素因数の和:3847

約数の個数: 80

約数和(自身を含む): 66594528

約数和(自身を除く): 44929458

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3821, 5670, 7642, 11463, 19105, 22926, 26747, 34389, 38210, 53494, 57315, 68778, 80241, 103167, 114630, 133735, 160482, 171945, 206334, 240723, 267470, 309501, 343890, 401205, 481446, 515835, 619002, 722169, 802410, 1031670, 1203615, 1444338, 1547505, 2166507, 2407230, 3095010, 3610845, 4333014, 7221690, 10832535, 21665070]

約数ペア:

[(1, 21665070), (2, 10832535), (3, 7221690), (5, 4333014), (6, 3610845), (7, 3095010), (9, 2407230), (10, 2166507), (14, 1547505), (15, 1444338), (18, 1203615), (21, 1031670), (27, 802410), (30, 722169), (35, 619002), (42, 515835), (45, 481446), (54, 401205), (63, 343890), (70, 309501), (81, 267470), (90, 240723), (105, 206334), (126, 171945), (135, 160482), (162, 133735), (189, 114630), (210, 103167), (270, 80241), (315, 68778), (378, 57315), (405, 53494), (567, 38210), (630, 34389), (810, 26747), (945, 22926), (1134, 19105), (1890, 11463), (2835, 7642), (3821, 5670)]