21804432

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 61537728

約数和(自身を除く): 39733296

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 83, 104, 156, 166, 208, 249, 312, 332, 421, 498, 624, 664, 842, 996, 1079, 1263, 1328, 1684, 1992, 2158, 2526, 3237, 3368, 3984, 4316, 5052, 5473, 6474, 6736, 8632, 10104, 10946, 12948, 16419, 17264, 20208, 21892, 25896, 32838, 34943, 43784, 51792, 65676, 69886, 87568, 104829, 131352, 139772, 209658, 262704, 279544, 419316, 454259, 559088, 838632, 908518, 1362777, 1677264, 1817036, 2725554, 3634072, 5451108, 7268144, 10902216, 21804432]

約数ペア:

[(1, 21804432), (2, 10902216), (3, 7268144), (4, 5451108), (6, 3634072), (8, 2725554), (12, 1817036), (13, 1677264), (16, 1362777), (24, 908518), (26, 838632), (39, 559088), (48, 454259), (52, 419316), (78, 279544), (83, 262704), (104, 209658), (156, 139772), (166, 131352), (208, 104829), (249, 87568), (312, 69886), (332, 65676), (421, 51792), (498, 43784), (624, 34943), (664, 32838), (842, 25896), (996, 21892), (1079, 20208), (1263, 17264), (1328, 16419), (1684, 12948), (1992, 10946), (2158, 10104), (2526, 8632), (3237, 6736), (3368, 6474), (3984, 5473), (4316, 5052)]