21301578

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1039}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 28343862

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 67, 102, 134, 153, 201, 306, 402, 603, 1039, 1139, 1206, 2078, 2278, 3117, 3417, 6234, 6834, 9351, 10251, 17663, 18702, 20502, 35326, 52989, 69613, 105978, 139226, 158967, 208839, 317934, 417678, 626517, 1183421, 1253034, 2366842, 3550263, 7100526, 10650789, 21301578]

約数ペア:

[(1, 21301578), (2, 10650789), (3, 7100526), (6, 3550263), (9, 2366842), (17, 1253034), (18, 1183421), (34, 626517), (51, 417678), (67, 317934), (102, 208839), (134, 158967), (153, 139226), (201, 105978), (306, 69613), (402, 52989), (603, 35326), (1039, 20502), (1139, 18702), (1206, 17663), (2078, 10251), (2278, 9351), (3117, 6834), (3417, 6234)]