21796060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7621}}^1$

素因数の和:7654

約数の個数: 48

約数和(自身を含む): 53780832

約数和(自身を除く): 31984772

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7621, 15242, 30484, 38105, 76210, 83831, 99073, 152420, 167662, 198146, 335324, 396292, 419155, 495365, 838310, 990730, 1089803, 1676620, 1981460, 2179606, 4359212, 5449015, 10898030, 21796060]

約数ペア:

[(1, 21796060), (2, 10898030), (4, 5449015), (5, 4359212), (10, 2179606), (11, 1981460), (13, 1676620), (20, 1089803), (22, 990730), (26, 838310), (44, 495365), (52, 419155), (55, 396292), (65, 335324), (110, 198146), (130, 167662), (143, 152420), (220, 99073), (260, 83831), (286, 76210), (572, 38105), (715, 30484), (1430, 15242), (2860, 7621)]