21156012

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 36904788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 71, 89, 93, 108, 124, 142, 178, 186, 213, 267, 279, 284, 356, 372, 426, 534, 558, 639, 801, 837, 852, 1068, 1116, 1278, 1602, 1674, 1917, 2201, 2403, 2556, 2759, 3204, 3348, 3834, 4402, 4806, 5518, 6319, 6603, 7668, 8277, 8804, 9612, 11036, 12638, 13206, 16554, 18957, 19809, 24831, 25276, 26412, 33108, 37914, 39618, 49662, 56871, 59427, 74493, 75828, 79236, 99324, 113742, 118854, 148986, 170613, 195889, 227484, 237708, 297972, 341226, 391778, 587667, 682452, 783556, 1175334, 1763001, 2350668, 3526002, 5289003, 7052004, 10578006, 21156012]

約数ペア:

[(1, 21156012), (2, 10578006), (3, 7052004), (4, 5289003), (6, 3526002), (9, 2350668), (12, 1763001), (18, 1175334), (27, 783556), (31, 682452), (36, 587667), (54, 391778), (62, 341226), (71, 297972), (89, 237708), (93, 227484), (108, 195889), (124, 170613), (142, 148986), (178, 118854), (186, 113742), (213, 99324), (267, 79236), (279, 75828), (284, 74493), (356, 59427), (372, 56871), (426, 49662), (534, 39618), (558, 37914), (639, 33108), (801, 26412), (837, 25276), (852, 24831), (1068, 19809), (1116, 18957), (1278, 16554), (1602, 13206), (1674, 12638), (1917, 11036), (2201, 9612), (2403, 8804), (2556, 8277), (2759, 7668), (3204, 6603), (3348, 6319), (3834, 5518), (4402, 4806)]