21915693830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1\times {\mathrm{87317}}^1$

素因数の和:88664

約数の個数: 32

約数和(自身を含む): 41556382560

約数和(自身を除く): 19640688730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1321, 2642, 6605, 13210, 25099, 50198, 87317, 125495, 174634, 250990, 436585, 873170, 1659023, 3318046, 8295115, 16590230, 115345757, 230691514, 576728785, 1153457570, 2191569383, 4383138766, 10957846915, 21915693830]

約数ペア:

[(1, 21915693830), (2, 10957846915), (5, 4383138766), (10, 2191569383), (19, 1153457570), (38, 576728785), (95, 230691514), (190, 115345757), (1321, 16590230), (2642, 8295115), (6605, 3318046), (13210, 1659023), (25099, 873170), (50198, 436585), (87317, 250990), (125495, 174634)]