18691364

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 39197760

約数和(自身を除く): 20506396

約数列:

[1, 2, 4, 17, 19, 23, 34, 37, 38, 46, 68, 74, 76, 92, 148, 289, 323, 391, 437, 578, 629, 646, 703, 782, 851, 874, 1156, 1258, 1292, 1406, 1564, 1702, 1748, 2516, 2812, 3404, 5491, 6647, 7429, 10693, 10982, 11951, 13294, 14467, 14858, 16169, 21386, 21964, 23902, 26588, 28934, 29716, 32338, 42772, 47804, 57868, 64676, 126293, 203167, 245939, 252586, 274873, 406334, 491878, 505172, 549746, 812668, 983756, 1099492, 4672841, 9345682, 18691364]

約数ペア:

[(1, 18691364), (2, 9345682), (4, 4672841), (17, 1099492), (19, 983756), (23, 812668), (34, 549746), (37, 505172), (38, 491878), (46, 406334), (68, 274873), (74, 252586), (76, 245939), (92, 203167), (148, 126293), (289, 64676), (323, 57868), (391, 47804), (437, 42772), (578, 32338), (629, 29716), (646, 28934), (703, 26588), (782, 23902), (851, 21964), (874, 21386), (1156, 16169), (1258, 14858), (1292, 14467), (1406, 13294), (1564, 11951), (1702, 10982), (1748, 10693), (2516, 7429), (2812, 6647), (3404, 5491)]