18537616

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:272

約数の個数: 60

約数和(自身を含む): 40352080

約数和(自身を除く): 21814464

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 211, 272, 289, 304, 323, 422, 578, 646, 844, 1156, 1292, 1688, 2312, 2584, 3376, 3587, 4009, 4624, 5168, 5491, 7174, 8018, 10982, 14348, 16036, 21964, 28696, 32072, 43928, 57392, 60979, 64144, 68153, 87856, 121958, 136306, 243916, 272612, 487832, 545224, 975664, 1090448, 1158601, 2317202, 4634404, 9268808, 18537616]

約数ペア:

[(1, 18537616), (2, 9268808), (4, 4634404), (8, 2317202), (16, 1158601), (17, 1090448), (19, 975664), (34, 545224), (38, 487832), (68, 272612), (76, 243916), (136, 136306), (152, 121958), (211, 87856), (272, 68153), (289, 64144), (304, 60979), (323, 57392), (422, 43928), (578, 32072), (646, 28696), (844, 21964), (1156, 16036), (1292, 14348), (1688, 10982), (2312, 8018), (2584, 7174), (3376, 5491), (3587, 5168), (4009, 4624)]