21945888

素因数分解:

$2^5\times 3^2\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:618

約数の個数: 72

約数和(自身を含む): 62902476

約数和(自身を除く): 40956588

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 181, 288, 362, 421, 543, 724, 842, 1086, 1263, 1448, 1629, 1684, 2172, 2526, 2896, 3258, 3368, 3789, 4344, 5052, 5792, 6516, 6736, 7578, 8688, 10104, 13032, 13472, 15156, 17376, 20208, 26064, 30312, 40416, 52128, 60624, 76201, 121248, 152402, 228603, 304804, 457206, 609608, 685809, 914412, 1219216, 1371618, 1828824, 2438432, 2743236, 3657648, 5486472, 7315296, 10972944, 21945888]

約数ペア:

[(1, 21945888), (2, 10972944), (3, 7315296), (4, 5486472), (6, 3657648), (8, 2743236), (9, 2438432), (12, 1828824), (16, 1371618), (18, 1219216), (24, 914412), (32, 685809), (36, 609608), (48, 457206), (72, 304804), (96, 228603), (144, 152402), (181, 121248), (288, 76201), (362, 60624), (421, 52128), (543, 40416), (724, 30312), (842, 26064), (1086, 20208), (1263, 17376), (1448, 15156), (1629, 13472), (1684, 13032), (2172, 10104), (2526, 8688), (2896, 7578), (3258, 6736), (3368, 6516), (3789, 5792), (4344, 5052)]