21021210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 96

約数和(自身を含む): 63603072

約数和(自身を除く): 42581862

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 61, 63, 70, 90, 105, 122, 126, 183, 210, 305, 315, 366, 427, 547, 549, 610, 630, 854, 915, 1094, 1098, 1281, 1641, 1830, 2135, 2562, 2735, 2745, 3282, 3829, 3843, 4270, 4923, 5470, 5490, 6405, 7658, 7686, 8205, 9846, 11487, 12810, 16410, 19145, 19215, 22974, 24615, 33367, 34461, 38290, 38430, 49230, 57435, 66734, 68922, 100101, 114870, 166835, 172305, 200202, 233569, 300303, 333670, 344610, 467138, 500505, 600606, 700707, 1001010, 1167845, 1401414, 1501515, 2102121, 2335690, 3003030, 3503535, 4204242, 7007070, 10510605, 21021210]

約数ペア:

[(1, 21021210), (2, 10510605), (3, 7007070), (5, 4204242), (6, 3503535), (7, 3003030), (9, 2335690), (10, 2102121), (14, 1501515), (15, 1401414), (18, 1167845), (21, 1001010), (30, 700707), (35, 600606), (42, 500505), (45, 467138), (61, 344610), (63, 333670), (70, 300303), (90, 233569), (105, 200202), (122, 172305), (126, 166835), (183, 114870), (210, 100101), (305, 68922), (315, 66734), (366, 57435), (427, 49230), (547, 38430), (549, 38290), (610, 34461), (630, 33367), (854, 24615), (915, 22974), (1094, 19215), (1098, 19145), (1281, 16410), (1641, 12810), (1830, 11487), (2135, 9846), (2562, 8205), (2735, 7686), (2745, 7658), (3282, 6405), (3829, 5490), (3843, 5470), (4270, 4923)]