21874988

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 41260800

約数和(自身を除く): 19385812

約数列:

[1, 2, 4, 17, 34, 68, 127, 149, 254, 289, 298, 508, 578, 596, 1156, 2159, 2533, 4318, 5066, 8636, 10132, 18923, 36703, 37846, 43061, 73406, 75692, 86122, 146812, 172244, 321691, 643382, 1286764, 5468747, 10937494, 21874988]

約数ペア:

[(1, 21874988), (2, 10937494), (4, 5468747), (17, 1286764), (34, 643382), (68, 321691), (127, 172244), (149, 146812), (254, 86122), (289, 75692), (298, 73406), (508, 43061), (578, 37846), (596, 36703), (1156, 18923), (2159, 10132), (2533, 8636), (4318, 5066)]