21945132

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{367}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 61082112

約数和(自身を除く): 39136980

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 151, 198, 302, 367, 396, 453, 604, 734, 906, 1101, 1359, 1468, 1661, 1812, 2202, 2718, 3303, 3322, 4037, 4404, 4983, 5436, 6606, 6644, 8074, 9966, 12111, 13212, 14949, 16148, 19932, 24222, 29898, 36333, 48444, 55417, 59796, 72666, 110834, 145332, 166251, 221668, 332502, 498753, 609587, 665004, 997506, 1219174, 1828761, 1995012, 2438348, 3657522, 5486283, 7315044, 10972566, 21945132]

約数ペア:

[(1, 21945132), (2, 10972566), (3, 7315044), (4, 5486283), (6, 3657522), (9, 2438348), (11, 1995012), (12, 1828761), (18, 1219174), (22, 997506), (33, 665004), (36, 609587), (44, 498753), (66, 332502), (99, 221668), (132, 166251), (151, 145332), (198, 110834), (302, 72666), (367, 59796), (396, 55417), (453, 48444), (604, 36333), (734, 29898), (906, 24222), (1101, 19932), (1359, 16148), (1468, 14949), (1661, 13212), (1812, 12111), (2202, 9966), (2718, 8074), (3303, 6644), (3322, 6606), (4037, 5436), (4404, 4983)]