21131544

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 65664000

約数和(自身を除く): 44532456

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 49, 51, 56, 68, 84, 98, 102, 119, 136, 147, 151, 168, 196, 204, 238, 294, 302, 343, 357, 392, 408, 453, 476, 588, 604, 686, 714, 833, 906, 952, 1029, 1057, 1176, 1208, 1372, 1428, 1666, 1812, 2058, 2114, 2499, 2567, 2744, 2856, 3171, 3332, 3624, 4116, 4228, 4998, 5134, 5831, 6342, 6664, 7399, 7701, 8232, 8456, 9996, 10268, 11662, 12684, 14798, 15402, 17493, 17969, 19992, 20536, 22197, 23324, 25368, 29596, 30804, 34986, 35938, 44394, 46648, 51793, 53907, 59192, 61608, 69972, 71876, 88788, 103586, 107814, 125783, 139944, 143752, 155379, 177576, 207172, 215628, 251566, 310758, 377349, 414344, 431256, 503132, 621516, 754698, 880481, 1006264, 1243032, 1509396, 1760962, 2641443, 3018792, 3521924, 5282886, 7043848, 10565772, 21131544]

約数ペア:

[(1, 21131544), (2, 10565772), (3, 7043848), (4, 5282886), (6, 3521924), (7, 3018792), (8, 2641443), (12, 1760962), (14, 1509396), (17, 1243032), (21, 1006264), (24, 880481), (28, 754698), (34, 621516), (42, 503132), (49, 431256), (51, 414344), (56, 377349), (68, 310758), (84, 251566), (98, 215628), (102, 207172), (119, 177576), (136, 155379), (147, 143752), (151, 139944), (168, 125783), (196, 107814), (204, 103586), (238, 88788), (294, 71876), (302, 69972), (343, 61608), (357, 59192), (392, 53907), (408, 51793), (453, 46648), (476, 44394), (588, 35938), (604, 34986), (686, 30804), (714, 29596), (833, 25368), (906, 23324), (952, 22197), (1029, 20536), (1057, 19992), (1176, 17969), (1208, 17493), (1372, 15402), (1428, 14798), (1666, 12684), (1812, 11662), (2058, 10268), (2114, 9996), (2499, 8456), (2567, 8232), (2744, 7701), (2856, 7399), (3171, 6664), (3332, 6342), (3624, 5831), (4116, 5134), (4228, 4998)]