28217532

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 78721104

約数和(自身を除く): 50503572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 1036, 1297, 1554, 1813, 2594, 3108, 3626, 3891, 5188, 5439, 7252, 7782, 9079, 10878, 15564, 18158, 21756, 27237, 36316, 47989, 54474, 63553, 95978, 108948, 127106, 143967, 190659, 191956, 254212, 287934, 335923, 381318, 575868, 671846, 762636, 1007769, 1343692, 2015538, 2351461, 4031076, 4702922, 7054383, 9405844, 14108766, 28217532]

約数ペア:

[(1, 28217532), (2, 14108766), (3, 9405844), (4, 7054383), (6, 4702922), (7, 4031076), (12, 2351461), (14, 2015538), (21, 1343692), (28, 1007769), (37, 762636), (42, 671846), (49, 575868), (74, 381318), (84, 335923), (98, 287934), (111, 254212), (147, 191956), (148, 190659), (196, 143967), (222, 127106), (259, 108948), (294, 95978), (444, 63553), (518, 54474), (588, 47989), (777, 36316), (1036, 27237), (1297, 21756), (1554, 18158), (1813, 15564), (2594, 10878), (3108, 9079), (3626, 7782), (3891, 7252), (5188, 5439)]