21139160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4441}}^1$

素因数の和:4476

約数の個数: 64

約数和(自身を含む): 57568320

約数和(自身を除く): 36429160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4441, 4760, 8882, 17764, 22205, 31087, 35528, 44410, 62174, 75497, 88820, 124348, 150994, 155435, 177640, 248696, 301988, 310870, 377485, 528479, 603976, 621740, 754970, 1056958, 1243480, 1509940, 2113916, 2642395, 3019880, 4227832, 5284790, 10569580, 21139160]

約数ペア:

[(1, 21139160), (2, 10569580), (4, 5284790), (5, 4227832), (7, 3019880), (8, 2642395), (10, 2113916), (14, 1509940), (17, 1243480), (20, 1056958), (28, 754970), (34, 621740), (35, 603976), (40, 528479), (56, 377485), (68, 310870), (70, 301988), (85, 248696), (119, 177640), (136, 155435), (140, 150994), (170, 124348), (238, 88820), (280, 75497), (340, 62174), (476, 44410), (595, 35528), (680, 31087), (952, 22205), (1190, 17764), (2380, 8882), (4441, 4760)]