21588420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{1049}}^1$

素因数の和:1082

約数の個数: 96

約数和(自身を含む): 70560000

約数和(自身を除く): 48971580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1049, 1372, 1470, 1715, 2058, 2098, 2940, 3147, 3430, 4116, 4196, 5145, 5245, 6294, 6860, 7343, 10290, 10490, 12588, 14686, 15735, 20580, 20980, 22029, 29372, 31470, 36715, 44058, 51401, 62940, 73430, 88116, 102802, 110145, 146860, 154203, 205604, 220290, 257005, 308406, 359807, 440580, 514010, 616812, 719614, 771015, 1028020, 1079421, 1439228, 1542030, 1799035, 2158842, 3084060, 3598070, 4317684, 5397105, 7196140, 10794210, 21588420]

約数ペア:

[(1, 21588420), (2, 10794210), (3, 7196140), (4, 5397105), (5, 4317684), (6, 3598070), (7, 3084060), (10, 2158842), (12, 1799035), (14, 1542030), (15, 1439228), (20, 1079421), (21, 1028020), (28, 771015), (30, 719614), (35, 616812), (42, 514010), (49, 440580), (60, 359807), (70, 308406), (84, 257005), (98, 220290), (105, 205604), (140, 154203), (147, 146860), (196, 110145), (210, 102802), (245, 88116), (294, 73430), (343, 62940), (420, 51401), (490, 44058), (588, 36715), (686, 31470), (735, 29372), (980, 22029), (1029, 20980), (1049, 20580), (1372, 15735), (1470, 14686), (1715, 12588), (2058, 10490), (2098, 10290), (2940, 7343), (3147, 6860), (3430, 6294), (4116, 5245), (4196, 5145)]