21418572

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 61834752

約数和(自身を除く): 40416180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 53, 68, 84, 102, 106, 119, 159, 204, 212, 238, 283, 318, 357, 371, 476, 566, 636, 714, 742, 849, 901, 1113, 1132, 1428, 1484, 1698, 1802, 1981, 2226, 2703, 3396, 3604, 3962, 4452, 4811, 5406, 5943, 6307, 7924, 9622, 10812, 11886, 12614, 14433, 14999, 18921, 19244, 23772, 25228, 28866, 29998, 33677, 37842, 44997, 57732, 59996, 67354, 75684, 89994, 101031, 104993, 134708, 179988, 202062, 209986, 254983, 314979, 404124, 419972, 509966, 629958, 764949, 1019932, 1259916, 1529898, 1784881, 3059796, 3569762, 5354643, 7139524, 10709286, 21418572]

約数ペア:

[(1, 21418572), (2, 10709286), (3, 7139524), (4, 5354643), (6, 3569762), (7, 3059796), (12, 1784881), (14, 1529898), (17, 1259916), (21, 1019932), (28, 764949), (34, 629958), (42, 509966), (51, 419972), (53, 404124), (68, 314979), (84, 254983), (102, 209986), (106, 202062), (119, 179988), (159, 134708), (204, 104993), (212, 101031), (238, 89994), (283, 75684), (318, 67354), (357, 59996), (371, 57732), (476, 44997), (566, 37842), (636, 33677), (714, 29998), (742, 28866), (849, 25228), (901, 23772), (1113, 19244), (1132, 18921), (1428, 14999), (1484, 14433), (1698, 12614), (1802, 11886), (1981, 10812), (2226, 9622), (2703, 7924), (3396, 6307), (3604, 5943), (3962, 5406), (4452, 4811)]