21971933711

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1973}}^1\times {\mathrm{2309}}^1$

素因数の和:4355

約数の個数: 32

約数和(自身を含む): 27578517120

約数和(自身を除く): 5606583409

約数列:

[1, 7, 13, 53, 91, 371, 689, 1973, 2309, 4823, 13811, 16163, 25649, 30017, 104569, 122377, 179543, 210119, 731983, 856639, 1359397, 1590901, 4555657, 9515779, 11136307, 31889599, 59223541, 241449821, 414564787, 1690148747, 3138847673, 21971933711]

約数ペア:

[(1, 21971933711), (7, 3138847673), (13, 1690148747), (53, 414564787), (91, 241449821), (371, 59223541), (689, 31889599), (1973, 11136307), (2309, 9515779), (4823, 4555657), (13811, 1590901), (16163, 1359397), (25649, 856639), (30017, 731983), (104569, 210119), (122377, 179543)]