21000974410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^2\times {\mathrm{13597}}^1$

素因数の和:13835

約数の個数: 48

約数和(自身を含む): 41089511736

約数和(自身を除く): 20088537326

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 2834, 7085, 11881, 13597, 14170, 23762, 27194, 59405, 67985, 118810, 135970, 154453, 176761, 308906, 353522, 772265, 883805, 1482073, 1544530, 1767610, 2964146, 7410365, 14820730, 19266949, 38533898, 96334745, 161545957, 192669490, 323091914, 807729785, 1615459570, 2100097441, 4200194882, 10500487205, 21000974410]

約数ペア:

[(1, 21000974410), (2, 10500487205), (5, 4200194882), (10, 2100097441), (13, 1615459570), (26, 807729785), (65, 323091914), (109, 192669490), (130, 161545957), (218, 96334745), (545, 38533898), (1090, 19266949), (1417, 14820730), (2834, 7410365), (7085, 2964146), (11881, 1767610), (13597, 1544530), (14170, 1482073), (23762, 883805), (27194, 772265), (59405, 353522), (67985, 308906), (118810, 176761), (135970, 154453)]