21085388624

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{686731}}^1$

素因数の和:686859

約数の個数: 40

約数和(自身を含む): 43428931680

約数和(自身を除く): 22343543056

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 304, 404, 808, 1616, 1919, 3838, 7676, 15352, 30704, 686731, 1373462, 2746924, 5493848, 10987696, 13047889, 26095778, 52191556, 69359831, 104383112, 138719662, 208766224, 277439324, 554878648, 1109757296, 1317836789, 2635673578, 5271347156, 10542694312, 21085388624]

約数ペア:

[(1, 21085388624), (2, 10542694312), (4, 5271347156), (8, 2635673578), (16, 1317836789), (19, 1109757296), (38, 554878648), (76, 277439324), (101, 208766224), (152, 138719662), (202, 104383112), (304, 69359831), (404, 52191556), (808, 26095778), (1616, 13047889), (1919, 10987696), (3838, 5493848), (7676, 2746924), (15352, 1373462), (30704, 686731)]