21876452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 43728384

約数和(自身を除く): 21851932

約数列:

[1, 2, 4, 13, 26, 31, 41, 52, 62, 82, 124, 164, 331, 403, 533, 662, 806, 1066, 1271, 1324, 1612, 2132, 2542, 4303, 5084, 8606, 10261, 13571, 16523, 17212, 20522, 27142, 33046, 41044, 54284, 66092, 133393, 176423, 266786, 352846, 420701, 533572, 705692, 841402, 1682804, 5469113, 10938226, 21876452]

約数ペア:

[(1, 21876452), (2, 10938226), (4, 5469113), (13, 1682804), (26, 841402), (31, 705692), (41, 533572), (52, 420701), (62, 352846), (82, 266786), (124, 176423), (164, 133393), (331, 66092), (403, 54284), (533, 41044), (662, 33046), (806, 27142), (1066, 20522), (1271, 17212), (1324, 16523), (1612, 13571), (2132, 10261), (2542, 8606), (4303, 5084)]