18212128

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1721

約数の個数: 48

約数和(自身を含む): 40400640

約数和(自身を除く): 22188512

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1669, 2728, 3338, 5456, 6676, 10912, 13352, 18359, 26704, 36718, 51739, 53408, 73436, 103478, 146872, 206956, 293744, 413912, 569129, 587488, 827824, 1138258, 1655648, 2276516, 4553032, 9106064, 18212128]

約数ペア:

[(1, 18212128), (2, 9106064), (4, 4553032), (8, 2276516), (11, 1655648), (16, 1138258), (22, 827824), (31, 587488), (32, 569129), (44, 413912), (62, 293744), (88, 206956), (124, 146872), (176, 103478), (248, 73436), (341, 53408), (352, 51739), (496, 36718), (682, 26704), (992, 18359), (1364, 13352), (1669, 10912), (2728, 6676), (3338, 5456)]