21072168

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 41827032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 47, 52, 72, 78, 94, 104, 117, 141, 156, 188, 234, 282, 312, 376, 423, 468, 479, 564, 611, 846, 936, 958, 1128, 1222, 1437, 1692, 1833, 1916, 2444, 2874, 3384, 3666, 3832, 4311, 4888, 5499, 5748, 6227, 7332, 8622, 10998, 11496, 12454, 14664, 17244, 18681, 21996, 22513, 24908, 34488, 37362, 43992, 45026, 49816, 56043, 67539, 74724, 90052, 112086, 135078, 149448, 180104, 202617, 224172, 270156, 292669, 405234, 448344, 540312, 585338, 810468, 878007, 1170676, 1620936, 1756014, 2341352, 2634021, 3512028, 5268042, 7024056, 10536084, 21072168]

約数ペア:

[(1, 21072168), (2, 10536084), (3, 7024056), (4, 5268042), (6, 3512028), (8, 2634021), (9, 2341352), (12, 1756014), (13, 1620936), (18, 1170676), (24, 878007), (26, 810468), (36, 585338), (39, 540312), (47, 448344), (52, 405234), (72, 292669), (78, 270156), (94, 224172), (104, 202617), (117, 180104), (141, 149448), (156, 135078), (188, 112086), (234, 90052), (282, 74724), (312, 67539), (376, 56043), (423, 49816), (468, 45026), (479, 43992), (564, 37362), (611, 34488), (846, 24908), (936, 22513), (958, 21996), (1128, 18681), (1222, 17244), (1437, 14664), (1692, 12454), (1833, 11496), (1916, 10998), (2444, 8622), (2874, 7332), (3384, 6227), (3666, 5748), (3832, 5499), (4311, 4888)]