15915978

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4039

約数の個数: 48

約数和(自身を含む): 39331656

約数和(自身を除く): 23415678

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 4001, 8002, 12003, 24006, 36009, 52013, 68017, 72018, 104026, 136034, 156039, 204051, 312078, 408102, 468117, 612153, 884221, 936234, 1224306, 1768442, 2652663, 5305326, 7957989, 15915978]

約数ペア:

[(1, 15915978), (2, 7957989), (3, 5305326), (6, 2652663), (9, 1768442), (13, 1224306), (17, 936234), (18, 884221), (26, 612153), (34, 468117), (39, 408102), (51, 312078), (78, 204051), (102, 156039), (117, 136034), (153, 104026), (221, 72018), (234, 68017), (306, 52013), (442, 36009), (663, 24006), (1326, 12003), (1989, 8002), (3978, 4001)]