21701988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7829}}^1$

素因数の和:7857

約数の個数: 72

約数和(自身を含む): 68402880

約数和(自身を除く): 46700892

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7829, 15658, 23487, 31316, 46974, 54803, 70461, 86119, 93948, 109606, 140922, 164409, 172238, 219212, 258357, 281844, 328818, 344476, 493227, 516714, 602833, 657636, 775071, 986454, 1033428, 1205666, 1550142, 1808499, 1972908, 2411332, 3100284, 3616998, 5425497, 7233996, 10850994, 21701988]

約数ペア:

[(1, 21701988), (2, 10850994), (3, 7233996), (4, 5425497), (6, 3616998), (7, 3100284), (9, 2411332), (11, 1972908), (12, 1808499), (14, 1550142), (18, 1205666), (21, 1033428), (22, 986454), (28, 775071), (33, 657636), (36, 602833), (42, 516714), (44, 493227), (63, 344476), (66, 328818), (77, 281844), (84, 258357), (99, 219212), (126, 172238), (132, 164409), (154, 140922), (198, 109606), (231, 93948), (252, 86119), (308, 70461), (396, 54803), (462, 46974), (693, 31316), (924, 23487), (1386, 15658), (2772, 7829)]