16953820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 38652768

約数和(自身を除く): 21698948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 331, 394, 662, 788, 985, 1324, 1655, 1970, 2561, 3310, 3940, 4303, 5122, 6620, 8606, 10244, 12805, 17212, 21515, 25610, 43030, 51220, 65207, 86060, 130414, 260828, 326035, 652070, 847691, 1304140, 1695382, 3390764, 4238455, 8476910, 16953820]

約数ペア:

[(1, 16953820), (2, 8476910), (4, 4238455), (5, 3390764), (10, 1695382), (13, 1304140), (20, 847691), (26, 652070), (52, 326035), (65, 260828), (130, 130414), (197, 86060), (260, 65207), (331, 51220), (394, 43030), (662, 25610), (788, 21515), (985, 17212), (1324, 12805), (1655, 10244), (1970, 8606), (2561, 6620), (3310, 5122), (3940, 4303)]