21264824

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3191}}^1$

素因数の和:3228

約数の個数: 48

約数和(自身を含む): 49124880

約数和(自身を除く): 27860056

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3191, 3332, 6382, 6664, 12764, 22337, 25528, 44674, 54247, 89348, 108494, 156359, 178696, 216988, 312718, 379729, 433976, 625436, 759458, 1250872, 1518916, 2658103, 3037832, 5316206, 10632412, 21264824]

約数ペア:

[(1, 21264824), (2, 10632412), (4, 5316206), (7, 3037832), (8, 2658103), (14, 1518916), (17, 1250872), (28, 759458), (34, 625436), (49, 433976), (56, 379729), (68, 312718), (98, 216988), (119, 178696), (136, 156359), (196, 108494), (238, 89348), (392, 54247), (476, 44674), (833, 25528), (952, 22337), (1666, 12764), (3191, 6664), (3332, 6382)]