19722456

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1153

約数の個数: 96

約数和(自身を含む): 60606000

約数和(自身を除く): 40883544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 36, 38, 39, 52, 57, 72, 76, 78, 104, 114, 117, 152, 156, 171, 228, 234, 247, 312, 342, 456, 468, 494, 684, 741, 936, 988, 1109, 1368, 1482, 1976, 2218, 2223, 2964, 3327, 4436, 4446, 5928, 6654, 8872, 8892, 9981, 13308, 14417, 17784, 19962, 21071, 26616, 28834, 39924, 42142, 43251, 57668, 63213, 79848, 84284, 86502, 115336, 126426, 129753, 168568, 173004, 189639, 252852, 259506, 273923, 346008, 379278, 505704, 519012, 547846, 758556, 821769, 1038024, 1095692, 1517112, 1643538, 2191384, 2465307, 3287076, 4930614, 6574152, 9861228, 19722456]

約数ペア:

[(1, 19722456), (2, 9861228), (3, 6574152), (4, 4930614), (6, 3287076), (8, 2465307), (9, 2191384), (12, 1643538), (13, 1517112), (18, 1095692), (19, 1038024), (24, 821769), (26, 758556), (36, 547846), (38, 519012), (39, 505704), (52, 379278), (57, 346008), (72, 273923), (76, 259506), (78, 252852), (104, 189639), (114, 173004), (117, 168568), (152, 129753), (156, 126426), (171, 115336), (228, 86502), (234, 84284), (247, 79848), (312, 63213), (342, 57668), (456, 43251), (468, 42142), (494, 39924), (684, 28834), (741, 26616), (936, 21071), (988, 19962), (1109, 17784), (1368, 14417), (1482, 13308), (1976, 9981), (2218, 8892), (2223, 8872), (2964, 6654), (3327, 5928), (4436, 4446)]