21799882

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 40449024

約数和(自身を除く): 18649142

約数列:

[1, 2, 13, 17, 26, 31, 34, 37, 43, 62, 74, 86, 221, 403, 442, 481, 527, 559, 629, 731, 806, 962, 1054, 1118, 1147, 1258, 1333, 1462, 1591, 2294, 2666, 3182, 6851, 8177, 9503, 13702, 14911, 16354, 17329, 19006, 19499, 20683, 22661, 27047, 29822, 34658, 38998, 41366, 45322, 49321, 54094, 98642, 253487, 294593, 351611, 506974, 589186, 641173, 703222, 838457, 1282346, 1676914, 10899941, 21799882]

約数ペア:

[(1, 21799882), (2, 10899941), (13, 1676914), (17, 1282346), (26, 838457), (31, 703222), (34, 641173), (37, 589186), (43, 506974), (62, 351611), (74, 294593), (86, 253487), (221, 98642), (403, 54094), (442, 49321), (481, 45322), (527, 41366), (559, 38998), (629, 34658), (731, 29822), (806, 27047), (962, 22661), (1054, 20683), (1118, 19499), (1147, 19006), (1258, 17329), (1333, 16354), (1462, 14911), (1591, 13702), (2294, 9503), (2666, 8177), (3182, 6851)]