20989830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7213}}^1$

素因数の和:7320

約数の個数: 32

約数和(自身を含む): 50901984

約数和(自身を除く): 29912154

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7213, 14426, 21639, 36065, 43278, 72130, 108195, 216390, 699661, 1399322, 2098983, 3498305, 4197966, 6996610, 10494915, 20989830]

約数ペア:

[(1, 20989830), (2, 10494915), (3, 6996610), (5, 4197966), (6, 3498305), (10, 2098983), (15, 1399322), (30, 699661), (97, 216390), (194, 108195), (291, 72130), (485, 43278), (582, 36065), (970, 21639), (1455, 14426), (2910, 7213)]