21247170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 128

約数和(自身を含む): 62705664

約数和(自身を除く): 41458494

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 53, 69, 70, 83, 105, 106, 115, 138, 159, 161, 166, 210, 230, 249, 265, 318, 322, 345, 371, 415, 483, 498, 530, 581, 690, 742, 795, 805, 830, 966, 1113, 1162, 1219, 1245, 1590, 1610, 1743, 1855, 1909, 2226, 2415, 2438, 2490, 2905, 3486, 3657, 3710, 3818, 4399, 4830, 5565, 5727, 5810, 6095, 7314, 8533, 8715, 8798, 9545, 11130, 11454, 12190, 13197, 13363, 17066, 17430, 18285, 19090, 21995, 25599, 26394, 26726, 28635, 30793, 36570, 40089, 42665, 43990, 51198, 57270, 61586, 65985, 66815, 80178, 85330, 92379, 101177, 127995, 131970, 133630, 153965, 184758, 200445, 202354, 255990, 303531, 307930, 400890, 461895, 505885, 607062, 708239, 923790, 1011770, 1416478, 1517655, 2124717, 3035310, 3541195, 4249434, 7082390, 10623585, 21247170]

約数ペア:

[(1, 21247170), (2, 10623585), (3, 7082390), (5, 4249434), (6, 3541195), (7, 3035310), (10, 2124717), (14, 1517655), (15, 1416478), (21, 1011770), (23, 923790), (30, 708239), (35, 607062), (42, 505885), (46, 461895), (53, 400890), (69, 307930), (70, 303531), (83, 255990), (105, 202354), (106, 200445), (115, 184758), (138, 153965), (159, 133630), (161, 131970), (166, 127995), (210, 101177), (230, 92379), (249, 85330), (265, 80178), (318, 66815), (322, 65985), (345, 61586), (371, 57270), (415, 51198), (483, 43990), (498, 42665), (530, 40089), (581, 36570), (690, 30793), (742, 28635), (795, 26726), (805, 26394), (830, 25599), (966, 21995), (1113, 19090), (1162, 18285), (1219, 17430), (1245, 17066), (1590, 13363), (1610, 13197), (1743, 12190), (1855, 11454), (1909, 11130), (2226, 9545), (2415, 8798), (2438, 8715), (2490, 8533), (2905, 7314), (3486, 6095), (3657, 5810), (3710, 5727), (3818, 5565), (4399, 4830)]