18866354

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 32410560

約数和(自身を除く): 13544206

約数列:

[1, 2, 13, 19, 26, 38, 181, 211, 247, 362, 422, 494, 2353, 2743, 3439, 4009, 4706, 5486, 6878, 8018, 38191, 44707, 52117, 76382, 89414, 104234, 496483, 725629, 992966, 1451258, 9433177, 18866354]

約数ペア:

[(1, 18866354), (2, 9433177), (13, 1451258), (19, 992966), (26, 725629), (38, 496483), (181, 104234), (211, 89414), (247, 76382), (362, 52117), (422, 44707), (494, 38191), (2353, 8018), (2743, 6878), (3439, 5486), (4009, 4706)]