21371462008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1303}}^1\times {\mathrm{9277}}^1$

素因数の和:10616

約数の個数: 64

約数和(自身を含む): 45732375360

約数和(自身を除く): 24360913352

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1303, 1768, 2606, 5212, 9277, 10424, 16939, 18554, 22151, 33878, 37108, 44302, 67756, 74216, 88604, 120601, 135512, 157709, 177208, 241202, 287963, 315418, 482404, 575926, 630836, 964808, 1151852, 1261672, 2050217, 2303704, 4100434, 8200868, 12087931, 16401736, 24175862, 48351724, 96703448, 157143103, 205494827, 314286206, 410989654, 628572412, 821979308, 1257144824, 1643958616, 2671432751, 5342865502, 10685731004, 21371462008]

約数ペア:

[(1, 21371462008), (2, 10685731004), (4, 5342865502), (8, 2671432751), (13, 1643958616), (17, 1257144824), (26, 821979308), (34, 628572412), (52, 410989654), (68, 314286206), (104, 205494827), (136, 157143103), (221, 96703448), (442, 48351724), (884, 24175862), (1303, 16401736), (1768, 12087931), (2606, 8200868), (5212, 4100434), (9277, 2303704), (10424, 2050217), (16939, 1261672), (18554, 1151852), (22151, 964808), (33878, 630836), (37108, 575926), (44302, 482404), (67756, 315418), (74216, 287963), (88604, 241202), (120601, 177208), (135512, 157709)]