18398004

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 47109888

約数和(自身を除く): 28711884

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 137, 186, 228, 274, 361, 372, 411, 548, 589, 722, 822, 1083, 1178, 1444, 1644, 1767, 2166, 2356, 2603, 3534, 4247, 4332, 5206, 7068, 7809, 8494, 10412, 11191, 12741, 15618, 16988, 22382, 25482, 31236, 33573, 44764, 49457, 50964, 67146, 80693, 98914, 134292, 148371, 161386, 197828, 242079, 296742, 322772, 484158, 593484, 968316, 1533167, 3066334, 4599501, 6132668, 9199002, 18398004]

約数ペア:

[(1, 18398004), (2, 9199002), (3, 6132668), (4, 4599501), (6, 3066334), (12, 1533167), (19, 968316), (31, 593484), (38, 484158), (57, 322772), (62, 296742), (76, 242079), (93, 197828), (114, 161386), (124, 148371), (137, 134292), (186, 98914), (228, 80693), (274, 67146), (361, 50964), (372, 49457), (411, 44764), (548, 33573), (589, 31236), (722, 25482), (822, 22382), (1083, 16988), (1178, 15618), (1444, 12741), (1644, 11191), (1767, 10412), (2166, 8494), (2356, 7809), (2603, 7068), (3534, 5206), (4247, 4332)]