18284872

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 35321400

約数和(自身を除く): 17036528

約数列:

[1, 2, 4, 8, 61, 89, 122, 178, 244, 356, 421, 488, 712, 842, 1684, 3368, 5429, 10858, 21716, 25681, 37469, 43432, 51362, 74938, 102724, 149876, 205448, 299752, 2285609, 4571218, 9142436, 18284872]

約数ペア:

[(1, 18284872), (2, 9142436), (4, 4571218), (8, 2285609), (61, 299752), (89, 205448), (122, 149876), (178, 102724), (244, 74938), (356, 51362), (421, 43432), (488, 37469), (712, 25681), (842, 21716), (1684, 10858), (3368, 5429)]