21991450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1471}}^1$

素因数の和:1519

約数の個数: 48

約数和(自身を含む): 45997056

約数和(自身を除く): 24005606

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 115, 130, 230, 299, 325, 575, 598, 650, 1150, 1471, 1495, 2942, 2990, 7355, 7475, 14710, 14950, 19123, 33833, 36775, 38246, 67666, 73550, 95615, 169165, 191230, 338330, 439829, 478075, 845825, 879658, 956150, 1691650, 2199145, 4398290, 10995725, 21991450]

約数ペア:

[(1, 21991450), (2, 10995725), (5, 4398290), (10, 2199145), (13, 1691650), (23, 956150), (25, 879658), (26, 845825), (46, 478075), (50, 439829), (65, 338330), (115, 191230), (130, 169165), (230, 95615), (299, 73550), (325, 67666), (575, 38246), (598, 36775), (650, 33833), (1150, 19123), (1471, 14950), (1495, 14710), (2942, 7475), (2990, 7355)]