21758035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 29494080

約数和(自身を除く): 7736045

約数列:

[1, 5, 13, 37, 65, 83, 109, 185, 415, 481, 545, 1079, 1417, 2405, 3071, 4033, 5395, 7085, 9047, 15355, 20165, 39923, 45235, 52429, 117611, 199615, 262145, 334739, 588055, 1673695, 4351607, 21758035]

約数ペア:

[(1, 21758035), (5, 4351607), (13, 1673695), (37, 588055), (65, 334739), (83, 262145), (109, 199615), (185, 117611), (415, 52429), (481, 45235), (545, 39923), (1079, 20165), (1417, 15355), (2405, 9047), (3071, 7085), (4033, 5395)]