21761384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2347}}^1$

素因数の和:2433

約数の個数: 32

約数和(自身を含む): 43672800

約数和(自身を除く): 21911416

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2318, 2347, 4636, 4694, 9272, 9388, 18776, 44593, 89186, 143167, 178372, 286334, 356744, 572668, 1145336, 2720173, 5440346, 10880692, 21761384]

約数ペア:

[(1, 21761384), (2, 10880692), (4, 5440346), (8, 2720173), (19, 1145336), (38, 572668), (61, 356744), (76, 286334), (122, 178372), (152, 143167), (244, 89186), (488, 44593), (1159, 18776), (2318, 9388), (2347, 9272), (4636, 4694)]