21917910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 64281600

約数和(自身を除く): 42363690

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 59, 61, 70, 87, 105, 118, 122, 145, 174, 177, 183, 203, 210, 290, 295, 305, 354, 366, 406, 413, 427, 435, 590, 609, 610, 826, 854, 870, 885, 915, 1015, 1218, 1239, 1281, 1711, 1769, 1770, 1830, 2030, 2065, 2135, 2478, 2562, 3045, 3422, 3538, 3599, 4130, 4270, 5133, 5307, 6090, 6195, 6405, 7198, 8555, 8845, 10266, 10614, 10797, 11977, 12383, 12390, 12810, 17110, 17690, 17995, 21594, 23954, 24766, 25193, 25665, 26535, 35931, 35990, 37149, 50386, 51330, 53070, 53985, 59885, 61915, 71862, 74298, 75579, 104371, 107970, 119770, 123830, 125965, 151158, 179655, 185745, 208742, 251930, 313113, 359310, 371490, 377895, 521855, 626226, 730597, 755790, 1043710, 1461194, 1565565, 2191791, 3131130, 3652985, 4383582, 7305970, 10958955, 21917910]

約数ペア:

[(1, 21917910), (2, 10958955), (3, 7305970), (5, 4383582), (6, 3652985), (7, 3131130), (10, 2191791), (14, 1565565), (15, 1461194), (21, 1043710), (29, 755790), (30, 730597), (35, 626226), (42, 521855), (58, 377895), (59, 371490), (61, 359310), (70, 313113), (87, 251930), (105, 208742), (118, 185745), (122, 179655), (145, 151158), (174, 125965), (177, 123830), (183, 119770), (203, 107970), (210, 104371), (290, 75579), (295, 74298), (305, 71862), (354, 61915), (366, 59885), (406, 53985), (413, 53070), (427, 51330), (435, 50386), (590, 37149), (609, 35990), (610, 35931), (826, 26535), (854, 25665), (870, 25193), (885, 24766), (915, 23954), (1015, 21594), (1218, 17995), (1239, 17690), (1281, 17110), (1711, 12810), (1769, 12390), (1770, 12383), (1830, 11977), (2030, 10797), (2065, 10614), (2135, 10266), (2478, 8845), (2562, 8555), (3045, 7198), (3422, 6405), (3538, 6195), (3599, 6090), (4130, 5307), (4270, 5133)]