21761940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7717}}^1$

素因数の和:7776

約数の個数: 48

約数和(自身を含む): 62237952

約数和(自身を除く): 40476012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7717, 15434, 23151, 30868, 38585, 46302, 77170, 92604, 115755, 154340, 231510, 362699, 463020, 725398, 1088097, 1450796, 1813495, 2176194, 3626990, 4352388, 5440485, 7253980, 10880970, 21761940]

約数ペア:

[(1, 21761940), (2, 10880970), (3, 7253980), (4, 5440485), (5, 4352388), (6, 3626990), (10, 2176194), (12, 1813495), (15, 1450796), (20, 1088097), (30, 725398), (47, 463020), (60, 362699), (94, 231510), (141, 154340), (188, 115755), (235, 92604), (282, 77170), (470, 46302), (564, 38585), (705, 30868), (940, 23151), (1410, 15434), (2820, 7717)]