16720333

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 21772800

約数和(自身を除く): 5052467

約数列:

[1, 7, 17, 23, 41, 119, 149, 161, 287, 391, 697, 943, 1043, 2533, 2737, 3427, 4879, 6109, 6601, 16031, 17731, 23989, 42763, 58259, 103853, 112217, 140507, 407813, 726971, 983549, 2388619, 16720333]

約数ペア:

[(1, 16720333), (7, 2388619), (17, 983549), (23, 726971), (41, 407813), (119, 140507), (149, 112217), (161, 103853), (287, 58259), (391, 42763), (697, 23989), (943, 17731), (1043, 16031), (2533, 6601), (2737, 6109), (3427, 4879)]