21007026

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 50181120

約数和(自身を除く): 29174094

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 47, 54, 62, 81, 89, 93, 94, 141, 162, 178, 186, 267, 279, 282, 423, 534, 558, 801, 837, 846, 1269, 1457, 1602, 1674, 2403, 2511, 2538, 2759, 2914, 3807, 4183, 4371, 4806, 5022, 5518, 7209, 7614, 8277, 8366, 8742, 12549, 13113, 14418, 16554, 24831, 25098, 26226, 37647, 39339, 49662, 74493, 75294, 78678, 112941, 118017, 129673, 148986, 223479, 225882, 236034, 259346, 338823, 389019, 446958, 677646, 778038, 1167057, 2334114, 3501171, 7002342, 10503513, 21007026]

約数ペア:

[(1, 21007026), (2, 10503513), (3, 7002342), (6, 3501171), (9, 2334114), (18, 1167057), (27, 778038), (31, 677646), (47, 446958), (54, 389019), (62, 338823), (81, 259346), (89, 236034), (93, 225882), (94, 223479), (141, 148986), (162, 129673), (178, 118017), (186, 112941), (267, 78678), (279, 75294), (282, 74493), (423, 49662), (534, 39339), (558, 37647), (801, 26226), (837, 25098), (846, 24831), (1269, 16554), (1457, 14418), (1602, 13113), (1674, 12549), (2403, 8742), (2511, 8366), (2538, 8277), (2759, 7614), (2914, 7209), (3807, 5518), (4183, 5022), (4371, 4806)]