21729488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{373}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 46190496

約数和(自身を除く): 24461008

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 331, 373, 662, 746, 1324, 1492, 2648, 2984, 3641, 4103, 5296, 5968, 7282, 8206, 14564, 16412, 29128, 32824, 58256, 65648, 123463, 246926, 493852, 987704, 1358093, 1975408, 2716186, 5432372, 10864744, 21729488]

約数ペア:

[(1, 21729488), (2, 10864744), (4, 5432372), (8, 2716186), (11, 1975408), (16, 1358093), (22, 987704), (44, 493852), (88, 246926), (176, 123463), (331, 65648), (373, 58256), (662, 32824), (746, 29128), (1324, 16412), (1492, 14564), (2648, 8206), (2984, 7282), (3641, 5968), (4103, 5296)]