2171488

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 4838400

約数和(自身を除く): 2666912

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 199, 248, 341, 352, 398, 496, 682, 796, 992, 1364, 1592, 2189, 2728, 3184, 4378, 5456, 6169, 6368, 8756, 10912, 12338, 17512, 24676, 35024, 49352, 67859, 70048, 98704, 135718, 197408, 271436, 542872, 1085744, 2171488]

約数ペア:

[(1, 2171488), (2, 1085744), (4, 542872), (8, 271436), (11, 197408), (16, 135718), (22, 98704), (31, 70048), (32, 67859), (44, 49352), (62, 35024), (88, 24676), (124, 17512), (176, 12338), (199, 10912), (248, 8756), (341, 6368), (352, 6169), (398, 5456), (496, 4378), (682, 3184), (796, 2728), (992, 2189), (1364, 1592)]