20977524

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 35789004

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 151, 153, 204, 227, 302, 306, 453, 454, 604, 612, 681, 906, 908, 1359, 1362, 1812, 2043, 2567, 2718, 2724, 3859, 4086, 5134, 5436, 7701, 7718, 8172, 10268, 11577, 15402, 15436, 23103, 23154, 30804, 34277, 34731, 46206, 46308, 68554, 69462, 92412, 102831, 137108, 138924, 205662, 308493, 411324, 582709, 616986, 1165418, 1233972, 1748127, 2330836, 3496254, 5244381, 6992508, 10488762, 20977524]

約数ペア:

[(1, 20977524), (2, 10488762), (3, 6992508), (4, 5244381), (6, 3496254), (9, 2330836), (12, 1748127), (17, 1233972), (18, 1165418), (34, 616986), (36, 582709), (51, 411324), (68, 308493), (102, 205662), (151, 138924), (153, 137108), (204, 102831), (227, 92412), (302, 69462), (306, 68554), (453, 46308), (454, 46206), (604, 34731), (612, 34277), (681, 30804), (906, 23154), (908, 23103), (1359, 15436), (1362, 15402), (1812, 11577), (2043, 10268), (2567, 8172), (2718, 7718), (2724, 7701), (3859, 5436), (4086, 5134)]