21698970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 55696896

約数和(自身を除く): 33997926

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 157, 170, 255, 271, 314, 471, 510, 542, 785, 813, 942, 1355, 1570, 1626, 2355, 2669, 2710, 4065, 4607, 4710, 5338, 8007, 8130, 9214, 13345, 13821, 16014, 23035, 26690, 27642, 40035, 42547, 46070, 69105, 80070, 85094, 127641, 138210, 212735, 255282, 425470, 638205, 723299, 1276410, 1446598, 2169897, 3616495, 4339794, 7232990, 10849485, 21698970]

約数ペア:

[(1, 21698970), (2, 10849485), (3, 7232990), (5, 4339794), (6, 3616495), (10, 2169897), (15, 1446598), (17, 1276410), (30, 723299), (34, 638205), (51, 425470), (85, 255282), (102, 212735), (157, 138210), (170, 127641), (255, 85094), (271, 80070), (314, 69105), (471, 46070), (510, 42547), (542, 40035), (785, 27642), (813, 26690), (942, 23035), (1355, 16014), (1570, 13821), (1626, 13345), (2355, 9214), (2669, 8130), (2710, 8007), (4065, 5338), (4607, 4710)]