21988356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2389}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 56212800

約数和(自身を除く): 34224444

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 59, 78, 118, 156, 177, 236, 354, 708, 767, 1534, 2301, 2389, 3068, 4602, 4778, 7167, 9204, 9556, 14334, 28668, 31057, 62114, 93171, 124228, 140951, 186342, 281902, 372684, 422853, 563804, 845706, 1691412, 1832363, 3664726, 5497089, 7329452, 10994178, 21988356]

約数ペア:

[(1, 21988356), (2, 10994178), (3, 7329452), (4, 5497089), (6, 3664726), (12, 1832363), (13, 1691412), (26, 845706), (39, 563804), (52, 422853), (59, 372684), (78, 281902), (118, 186342), (156, 140951), (177, 124228), (236, 93171), (354, 62114), (708, 31057), (767, 28668), (1534, 14334), (2301, 9556), (2389, 9204), (3068, 7167), (4602, 4778)]