21008452

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 41198080

約数和(自身を除く): 20189628

約数列:

[1, 2, 4, 19, 31, 37, 38, 62, 74, 76, 124, 148, 241, 482, 589, 703, 964, 1147, 1178, 1406, 2294, 2356, 2812, 4579, 4588, 7471, 8917, 9158, 14942, 17834, 18316, 21793, 29884, 35668, 43586, 87172, 141949, 169423, 276427, 283898, 338846, 552854, 567796, 677692, 1105708, 5252113, 10504226, 21008452]

約数ペア:

[(1, 21008452), (2, 10504226), (4, 5252113), (19, 1105708), (31, 677692), (37, 567796), (38, 552854), (62, 338846), (74, 283898), (76, 276427), (124, 169423), (148, 141949), (241, 87172), (482, 43586), (589, 35668), (703, 29884), (964, 21793), (1147, 18316), (1178, 17834), (1406, 14942), (2294, 9158), (2356, 8917), (2812, 7471), (4579, 4588)]