21592120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1636

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33150920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1583, 1705, 2728, 3166, 3410, 6332, 6820, 7915, 12664, 13640, 15830, 17413, 31660, 34826, 49073, 63320, 69652, 87065, 98146, 139304, 174130, 196292, 245365, 348260, 392584, 490730, 539803, 696520, 981460, 1079606, 1962920, 2159212, 2699015, 4318424, 5398030, 10796060, 21592120]

約数ペア:

[(1, 21592120), (2, 10796060), (4, 5398030), (5, 4318424), (8, 2699015), (10, 2159212), (11, 1962920), (20, 1079606), (22, 981460), (31, 696520), (40, 539803), (44, 490730), (55, 392584), (62, 348260), (88, 245365), (110, 196292), (124, 174130), (155, 139304), (220, 98146), (248, 87065), (310, 69652), (341, 63320), (440, 49073), (620, 34826), (682, 31660), (1240, 17413), (1364, 15830), (1583, 13640), (1705, 12664), (2728, 7915), (3166, 6820), (3410, 6332)]