18781532

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 43736448

約数和(自身を除く): 24954916

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 211, 238, 289, 308, 374, 422, 476, 578, 748, 844, 1156, 1309, 1477, 2023, 2321, 2618, 2954, 3179, 3587, 4046, 4642, 5236, 5908, 6358, 7174, 8092, 9284, 12716, 14348, 16247, 22253, 25109, 32494, 39457, 44506, 50218, 60979, 64988, 78914, 89012, 100436, 121958, 157828, 243916, 276199, 426853, 552398, 670769, 853706, 1104796, 1341538, 1707412, 2683076, 4695383, 9390766, 18781532]

約数ペア:

[(1, 18781532), (2, 9390766), (4, 4695383), (7, 2683076), (11, 1707412), (14, 1341538), (17, 1104796), (22, 853706), (28, 670769), (34, 552398), (44, 426853), (68, 276199), (77, 243916), (119, 157828), (154, 121958), (187, 100436), (211, 89012), (238, 78914), (289, 64988), (308, 60979), (374, 50218), (422, 44506), (476, 39457), (578, 32494), (748, 25109), (844, 22253), (1156, 16247), (1309, 14348), (1477, 12716), (2023, 9284), (2321, 8092), (2618, 7174), (2954, 6358), (3179, 5908), (3587, 5236), (4046, 4642)]