19657428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 54046944

約数和(自身を除く): 34389516

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 101, 147, 196, 202, 294, 303, 331, 404, 588, 606, 662, 707, 993, 1212, 1324, 1414, 1986, 2121, 2317, 2828, 3972, 4242, 4634, 4949, 6951, 8484, 9268, 9898, 13902, 14847, 16219, 19796, 27804, 29694, 32438, 33431, 48657, 59388, 64876, 66862, 97314, 100293, 133724, 194628, 200586, 234017, 401172, 468034, 702051, 936068, 1404102, 1638119, 2808204, 3276238, 4914357, 6552476, 9828714, 19657428]

約数ペア:

[(1, 19657428), (2, 9828714), (3, 6552476), (4, 4914357), (6, 3276238), (7, 2808204), (12, 1638119), (14, 1404102), (21, 936068), (28, 702051), (42, 468034), (49, 401172), (84, 234017), (98, 200586), (101, 194628), (147, 133724), (196, 100293), (202, 97314), (294, 66862), (303, 64876), (331, 59388), (404, 48657), (588, 33431), (606, 32438), (662, 29694), (707, 27804), (993, 19796), (1212, 16219), (1324, 14847), (1414, 13902), (1986, 9898), (2121, 9268), (2317, 8484), (2828, 6951), (3972, 4949), (4242, 4634)]