21919716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6691}}^1$

素因数の和:6721

約数の個数: 72

約数和(自身を含む): 68204864

約数和(自身を除く): 46285148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6691, 13382, 20073, 26764, 40146, 46837, 60219, 80292, 86983, 93674, 120438, 140511, 173966, 187348, 240876, 260949, 281022, 347932, 421533, 521898, 562044, 608881, 782847, 843066, 1043796, 1217762, 1565694, 1686132, 1826643, 2435524, 3131388, 3653286, 5479929, 7306572, 10959858, 21919716]

約数ペア:

[(1, 21919716), (2, 10959858), (3, 7306572), (4, 5479929), (6, 3653286), (7, 3131388), (9, 2435524), (12, 1826643), (13, 1686132), (14, 1565694), (18, 1217762), (21, 1043796), (26, 843066), (28, 782847), (36, 608881), (39, 562044), (42, 521898), (52, 421533), (63, 347932), (78, 281022), (84, 260949), (91, 240876), (117, 187348), (126, 173966), (156, 140511), (182, 120438), (234, 93674), (252, 86983), (273, 80292), (364, 60219), (468, 46837), (546, 40146), (819, 26764), (1092, 20073), (1638, 13382), (3276, 6691)]