19975108.000000000

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{829}}^1$

素因数の和:1181

約数の個数: 72

約数和(自身を含む): 439793760

約数和(自身を除く): 278447148

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 331, 588, 662, 829, 993, 1324, 1658, 1986, 2317, 2487, 3316, 3972, 4634, 4974, 5803, 6951, 9268, 9948, 11606, 13902, 16219, 17409, 23212, 27804, 32438, 34818, 40621, 48657, 64876, 69636, 81242, 97314, 121863, 162484, 194628, 243726, 274399, 487452, 548798, 823197, 1097596, 1646394, 1920793, 3292788, 3841586, 5762379, 7683172, 11524758, 13445551, 23049516, 26891102, 40336653, 53782204, 80673306, 161346612]

約数ペア:

[(1, 161346612), (2, 80673306), (3, 53782204), (4, 40336653), (6, 26891102), (7, 23049516), (12, 13445551), (14, 11524758), (21, 7683172), (28, 5762379), (42, 3841586), (49, 3292788), (84, 1920793), (98, 1646394), (147, 1097596), (196, 823197), (294, 548798), (331, 487452), (588, 274399), (662, 243726), (829, 194628), (993, 162484), (1324, 121863), (1658, 97314), (1986, 81242), (2317, 69636), (2487, 64876), (3316, 48657), (3972, 40621), (4634, 34818), (4974, 32438), (5803, 27804), (6951, 23212), (9268, 17409), (9948, 16219), (11606, 13902)]