21943480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2264

約数の個数: 64

約数和(自身を含む): 55994400

約数和(自身を除く): 34050920

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2221, 2470, 4442, 4940, 8884, 9880, 11105, 17768, 22210, 28873, 42199, 44420, 57746, 84398, 88840, 115492, 144365, 168796, 210995, 230984, 288730, 337592, 421990, 548587, 577460, 843980, 1097174, 1154920, 1687960, 2194348, 2742935, 4388696, 5485870, 10971740, 21943480]

約数ペア:

[(1, 21943480), (2, 10971740), (4, 5485870), (5, 4388696), (8, 2742935), (10, 2194348), (13, 1687960), (19, 1154920), (20, 1097174), (26, 843980), (38, 577460), (40, 548587), (52, 421990), (65, 337592), (76, 288730), (95, 230984), (104, 210995), (130, 168796), (152, 144365), (190, 115492), (247, 88840), (260, 84398), (380, 57746), (494, 44420), (520, 42199), (760, 28873), (988, 22210), (1235, 17768), (1976, 11105), (2221, 9880), (2470, 8884), (4442, 4940)]