21516628

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2659}}^1$

素因数の和:2704

約数の個数: 36

約数和(自身を含む): 45730720

約数和(自身を除く): 24214092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2659, 4046, 5318, 8092, 10636, 18613, 37226, 45203, 74452, 90406, 180812, 316421, 632842, 768451, 1265684, 1536902, 3073804, 5379157, 10758314, 21516628]

約数ペア:

[(1, 21516628), (2, 10758314), (4, 5379157), (7, 3073804), (14, 1536902), (17, 1265684), (28, 768451), (34, 632842), (68, 316421), (119, 180812), (238, 90406), (289, 74452), (476, 45203), (578, 37226), (1156, 18613), (2023, 10636), (2659, 8092), (4046, 5318)]