21248928

素因数分解:

$2^5\times 3^2\times {\mathrm{89}}^1\times {\mathrm{829}}^1$

素因数の和:934

約数の個数: 72

約数和(自身を含む): 61179300

約数和(自身を除く): 39930372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 89, 96, 144, 178, 267, 288, 356, 534, 712, 801, 829, 1068, 1424, 1602, 1658, 2136, 2487, 2848, 3204, 3316, 4272, 4974, 6408, 6632, 7461, 8544, 9948, 12816, 13264, 14922, 19896, 25632, 26528, 29844, 39792, 59688, 73781, 79584, 119376, 147562, 221343, 238752, 295124, 442686, 590248, 664029, 885372, 1180496, 1328058, 1770744, 2360992, 2656116, 3541488, 5312232, 7082976, 10624464, 21248928]

約数ペア:

[(1, 21248928), (2, 10624464), (3, 7082976), (4, 5312232), (6, 3541488), (8, 2656116), (9, 2360992), (12, 1770744), (16, 1328058), (18, 1180496), (24, 885372), (32, 664029), (36, 590248), (48, 442686), (72, 295124), (89, 238752), (96, 221343), (144, 147562), (178, 119376), (267, 79584), (288, 73781), (356, 59688), (534, 39792), (712, 29844), (801, 26528), (829, 25632), (1068, 19896), (1424, 14922), (1602, 13264), (1658, 12816), (2136, 9948), (2487, 8544), (2848, 7461), (3204, 6632), (3316, 6408), (4272, 4974)]