21964020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1025

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 46620300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 174, 195, 260, 290, 348, 377, 390, 435, 580, 754, 780, 870, 971, 1131, 1508, 1740, 1885, 1942, 2262, 2913, 3770, 3884, 4524, 4855, 5655, 5826, 7540, 9710, 11310, 11652, 12623, 14565, 19420, 22620, 25246, 28159, 29130, 37869, 50492, 56318, 58260, 63115, 75738, 84477, 112636, 126230, 140795, 151476, 168954, 189345, 252460, 281590, 337908, 366067, 378690, 422385, 563180, 732134, 757380, 844770, 1098201, 1464268, 1689540, 1830335, 2196402, 3660670, 4392804, 5491005, 7321340, 10982010, 21964020]

約数ペア:

[(1, 21964020), (2, 10982010), (3, 7321340), (4, 5491005), (5, 4392804), (6, 3660670), (10, 2196402), (12, 1830335), (13, 1689540), (15, 1464268), (20, 1098201), (26, 844770), (29, 757380), (30, 732134), (39, 563180), (52, 422385), (58, 378690), (60, 366067), (65, 337908), (78, 281590), (87, 252460), (116, 189345), (130, 168954), (145, 151476), (156, 140795), (174, 126230), (195, 112636), (260, 84477), (290, 75738), (348, 63115), (377, 58260), (390, 56318), (435, 50492), (580, 37869), (754, 29130), (780, 28159), (870, 25246), (971, 22620), (1131, 19420), (1508, 14565), (1740, 12623), (1885, 11652), (1942, 11310), (2262, 9710), (2913, 7540), (3770, 5826), (3884, 5655), (4524, 4855)]