21479952

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1240

約数の個数: 80

約数和(自身を含む): 61871040

約数和(自身を除く): 40391088

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1131, 1187, 1392, 1508, 2262, 2374, 3016, 3561, 4524, 4748, 6032, 7122, 9048, 9496, 14244, 15431, 18096, 18992, 28488, 30862, 34423, 46293, 56976, 61724, 68846, 92586, 103269, 123448, 137692, 185172, 206538, 246896, 275384, 370344, 413076, 447499, 550768, 740688, 826152, 894998, 1342497, 1652304, 1789996, 2684994, 3579992, 5369988, 7159984, 10739976, 21479952]

約数ペア:

[(1, 21479952), (2, 10739976), (3, 7159984), (4, 5369988), (6, 3579992), (8, 2684994), (12, 1789996), (13, 1652304), (16, 1342497), (24, 894998), (26, 826152), (29, 740688), (39, 550768), (48, 447499), (52, 413076), (58, 370344), (78, 275384), (87, 246896), (104, 206538), (116, 185172), (156, 137692), (174, 123448), (208, 103269), (232, 92586), (312, 68846), (348, 61724), (377, 56976), (464, 46293), (624, 34423), (696, 30862), (754, 28488), (1131, 18992), (1187, 18096), (1392, 15431), (1508, 14244), (2262, 9496), (2374, 9048), (3016, 7122), (3561, 6032), (4524, 4748)]