21000906378

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157049}}^1$

素因数の和:157116

約数の個数: 96

約数和(自身を含む): 52919568000

約数和(自身を除く): 31918661622

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 23, 34, 38, 46, 51, 57, 69, 102, 114, 138, 153, 171, 207, 306, 323, 342, 391, 414, 437, 646, 782, 874, 969, 1173, 1311, 1938, 2346, 2622, 2907, 3519, 3933, 5814, 7038, 7429, 7866, 14858, 22287, 44574, 66861, 133722, 157049, 314098, 471147, 942294, 1413441, 2669833, 2826882, 2983931, 3612127, 5339666, 5967862, 7224254, 8009499, 8951793, 10836381, 16018998, 17903586, 21672762, 24028497, 26855379, 32509143, 48056994, 50726827, 53710758, 61406159, 65018286, 68630413, 101453654, 122812318, 137260826, 152180481, 184218477, 205891239, 304360962, 368436954, 411782478, 456541443, 552655431, 617673717, 913082886, 1105310862, 1166717021, 1235347434, 2333434042, 3500151063, 7000302126, 10500453189, 21000906378]

約数ペア:

[(1, 21000906378), (2, 10500453189), (3, 7000302126), (6, 3500151063), (9, 2333434042), (17, 1235347434), (18, 1166717021), (19, 1105310862), (23, 913082886), (34, 617673717), (38, 552655431), (46, 456541443), (51, 411782478), (57, 368436954), (69, 304360962), (102, 205891239), (114, 184218477), (138, 152180481), (153, 137260826), (171, 122812318), (207, 101453654), (306, 68630413), (323, 65018286), (342, 61406159), (391, 53710758), (414, 50726827), (437, 48056994), (646, 32509143), (782, 26855379), (874, 24028497), (969, 21672762), (1173, 17903586), (1311, 16018998), (1938, 10836381), (2346, 8951793), (2622, 8009499), (2907, 7224254), (3519, 5967862), (3933, 5339666), (5814, 3612127), (7038, 2983931), (7429, 2826882), (7866, 2669833), (14858, 1413441), (22287, 942294), (44574, 471147), (66861, 314098), (133722, 157049)]