21565060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1181}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 50041152

約数和(自身を除く): 28476092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1181, 1660, 1826, 2362, 3652, 4565, 4724, 5905, 9130, 11810, 12991, 18260, 23620, 25982, 51964, 64955, 98023, 129910, 196046, 259820, 392092, 490115, 980230, 1078253, 1960460, 2156506, 4313012, 5391265, 10782530, 21565060]

約数ペア:

[(1, 21565060), (2, 10782530), (4, 5391265), (5, 4313012), (10, 2156506), (11, 1960460), (20, 1078253), (22, 980230), (44, 490115), (55, 392092), (83, 259820), (110, 196046), (166, 129910), (220, 98023), (332, 64955), (415, 51964), (830, 25982), (913, 23620), (1181, 18260), (1660, 12991), (1826, 11810), (2362, 9130), (3652, 5905), (4565, 4724)]